Reed for looms



Oct. 23,1928.

y. 4 "7% 7 1 ,1f u 2,0 0 "W M- -aa 3' ad 20 0 /l i TEIN ED FOR L OMS led Sep-t. 5 1927 gig., 7

gaga.

2 Sheets-Sheet 2 ze i d A IN VEN T01? am?, fflo ,4 TTOHNEY having` curved dents and double reed s'.

h Patented @et 23, 1928.

UNITED )STATES PATENT oFF-1ct.' t.

FRITZ noLLsrnrN, or HAw'Ti-:onnnnnw JERSEY, AssIGnoR 'ro Jenn GROSSGEBUER,

vor PATERSOMNEW JERSEY. 1 Y

nnen knon Looms.

Application filed September In weaving certain materials, as artiticial sill; or rayon and cert-ain cheaper lgrades oi? silk or th like, itis necessary to employ a relatively coarse reed with` 'a plru'alityotl such warp threads in each space between adjacent dents, and it is well known Vthat ysuch practice produces a coarse'appearing iinished product. Betere the time Vwhen artiii'cial sill; or rayon were used toany great extent, attempts have been made in the weavin ff ot tine sill; 'fabrics tovlessen the breakage Voi' silk threads contained in a very line reed, ,having a very small pitch, by providing a reed with strands o't thread or wire placed in t'ront ot' and forming a permanent part orn Vsaid reed such strands arranged to alternate with the dents otthe reed at the instant 7 ot beating' in bythe lay, with.v the warp vthreads kpassing in groups between such strands, but crossed or divided relatively to the grouping in the'reed dents,- the combined effect being that of aliner reed at the nioment ot beating in. These at'temptslhave tailed in practice, because otthe tact that the loom structure had to be altered at considerable expense and inconvenience in orderV to accommodate thedevice, or because of the tact that the .entering andtieing ot the silk threads became too cumbersome and expensive. ther eiiorts, to lessen theV breakage oit sillr threads, when contained in tine pitch reeds, have been made'by Iusingreeds These eiiorts have tailed because ot the t'act that the dents could not bend in such a manner as to allow the threads to move unimpededly at the bends or because the exact position of the warpthreads at vthe moment of beating' 1 up was not assured. n

A primary object of myr invention is to provide a separately formed independent Vauxiliary reed adapted to serve with the main reed without requiring mechanical changes in the loom structure'and consequently easily applied to the advantage ot the silk-threads being readily entered and tied by ence of the main reed. Y

rlfhe invention consists in certain novel features oit construction and arrangement by which the above objectsare attained, to be hereinafterdescribed and claimed.V Y

r)The accompanying' drawings form a part or" this specification and show the invention, as applied to a ribbon loom oi5 a vusual type,

usual lay with theadditional reasonlo't' its independting` theshght movement of the reeds re- 3, 1927. Serial No. 217,320.

only so much of the'lay being shown as isY 'necessary in illustrating the relation of the main and auxiliary reeds thereto.

lFigure 1 is a planv view showing portion ot'the lay with'the'reeds mounted thereon.

.Figure 2 is a corresponding front elevation showin the shuttle-races, with the shuttles omitted. y

Figure 3 is avvertical scction'taken on thev line 3-3 in Figure 2. p Y

Figure 4 is a rvertical section corresponding to a portion of Figure, showing in dotted lines the relation of the main vreed and the auxiliary or fore-reed at the instant of beatingin. iv l' AFigure 5 is a face view ofthe mainj reed. Figure 6 is a similar view ot' the torereed. vrFigures 7l and 8,.are'diagrammatichorizontal sections showing the relation ofthe dents vof the main reed and `tore-reed,beforev and at the instant oi' beating in, respectively, and the positions otthewarp threadsinlboth conditions. 1. i 'f l y Similar reference numerals indicate the same parts in all the figures. Y i

The lay 10 Vmay be understood to be in all respects as'u'sual injconsjtnuctioii, Aepiipment and operation, having the race-blocks 11 and race-ways 1Q, in which the shuttles, not shown, are traversed by the usual mechanism, also omitted.

o The blocks 11 are secured to vertical studs ljoined at their upper ends to a transverse bar 14 extending longitudinally ofthe lay. rlhe usual rabbet 15 at the back ot the lay, togetherr with a bar '1G similar to the bar 14, `forms a groove for the reception of rthe lower margins `ot the reeds.

The vertical margins of the reeds are required by the warp-threadsin their passage therethrough.

The main reeds are as usual, having bands 2O at the top and bottom and end bars 21 at` each side with a series of dents 22 extending kbetween the bands. The dents Vare thin strips ot steel lequally spaced and held rigidly.V

The auxiliary or fore-reeds comprise each a mounted on the lay vin the usual manner, no

series of dents'23 received in bands or holders 24 at the top and bottom with' no end bars,

and arepreij'erably. cylindrical in cross sec-` tion.V Thus constructed the fore-reeds are `flexible transversely, and are mounted each in front of its vcorrespondingmain reed With the dents 22 of the main reed separated from the dents 23 of the tore reed by a space determined-by the thickness of the bands 2O and holdersQt, as clearlyshown` in Figures 3 and 4, and both reeds are mounted on the lay and held loosely in place thereon as above described. l'

The Warp ends are reeded as illust-rated in Figures 7 i and 8; assumingfour Warp threads to traverse the space betiveeneach adjacent pair oi ydents 22 of the main reed, the same number traversethe space between each adjacent pair of dents Q3 of the tore reed but the latter four are made up ot the third and fourth threads of one main reed group with the iirst and second of'th el next main reed group, so that at the instant ot' beating up the dents 22and 23 assume momentarily the posi tion shown in Figure 8, in which the reed spaces of the combined reeds carry each tivo Warp threads only; and thus their proper position in the fabric is assured and the appearance of the finished product improved.

The dents of the fore reed correspond in pitch'to those ofthe main reed and their elasticity insures their immediate return to the original "positions on the backward movement of the lay. Y

As theV main and fore reeds are entirely independent the reeding of each is easilyjand economically performed, and as both are Lesa/isa changes inV the loom structure arel necessary. Although the invention is shown and den scribed as applied to a ribbon lo0m,'it Will be lunderstood that'it Will serve in weaving broad fabrics and'ivith other types ofilooms using' various materials as the vvarps.

Y l. In a loom, a main reed, liavingimmovable dents, invcombination with a fore reed separate irom and bodily movable 'in'relation thereto and lformed independently ot said main reed and having horizontally flexible dents permanently spaced in iiXed relation .and corresponding in pitch to'said im-` movable dents, and means for mounting said reeds upon the lay in spaced relation to each other, With said fore reed in iront' of said mainV reed. i i

2. In a loom, a main reed having immovfv able dents, in combination with a fore reed separatefrom and formed independently of and bodily movable in relation thereto said main reed andv consisting oit a top band and a bottom band only, with a series ofA dents :Y

of elastic flexible Wire eXtendedbetWeenv said reeds'upcn the lay in spa-ced relation to each otl1er,\vith said fore reed in front ot' said main reed.

In testimony that I claim the invention Y affix my signature heretoC above set forth I v FRITZ IIOLLSTEIN.. 

